Force-pump.



J. P. CUNNINGHAM.

' FORCE PUMP.

v ArPLIoA'rIoI funn nu a, 1909.

J. F. CUNNINGHAM.

FORCE PUKP. y unieuro! rI'Lnn n! a. nos.

Patented Dec.20, 1910.

a annu-snm' 2.

lfm m.

yto the accompanying drawings,

UNITED .STATES f .rome r. cunm'nemnjor,summum, ronenrum1- I l Application ma nay 3,' 1909.y amarlo.' 40a resident-of Springfield, .Missouri, have in'-l l vented certain new and useful Imfprovements in Force-Pumps, of which the ollowing is a specification containing-a full, and exact description, reference bein had forming a part hereof..

My invention relates to an improved force pump to be usedprincipally for the removal of matter in drain or lsewer pipes which has interru ted the flow of water or waste therethrougli)` to provide a novel construction`r and arrangement of parts in a pump for use in removing matter from waste or drain pipes.

The pump 'as contemplatedkby my invention is arranged to combine in one instrument the meritorious .features of a vacuum tip, which in-itself might be operated 4to remove matter from a waste pipe,va cylinder provided with a piston Vand. a valve which when operated forces air through a waste pipe to remove foreign matter therein,.and a connectioncontaining a valve wherebyfwater may be drawn in to the cylinder and forced into the drain pipe to remove sediment or foreign matter therefrom.

\My improved construction consists kin `a cylinder having a valve therein, a vacuum tipped base section arranged to be positioned over a drainpipe, a piston arranged" to operate within the cylinder, a valve containing member arranged. near the base section, and ay lieXible tube carried by said valve containing` member arranged to supply water from a source of supply to the cylinder. y

.To the above purposes, my invention consists in certaincvnovel features and arrange- K ment of parts, hereinafter more fully described, claimed and shown in the accompanying drawings, in which: v

Figure 1 is a perspective showing the pump as in use, having a portion of the base section removed to. illustrate Aits working position over a' drain pipe;v Fig.y 2 is an enlarged vertical sectional elevation of the lower end portion of the pump Withthe valves arranged to receive air or water from the flexible member; Fig. 3 is a sectional plan on the line 3-3 of Fig. 2; Fig. 4` is an enlarged elevation partly in section, showing amodified form of base section and the clear, f

, and t-he object of my invention is.

spettica'tiqacf Leftm'ntent..

theabase section an ythe flexible member; f

ing drawings, 1 desi ateszthecylinderand 2, a piston arrange kt-he'rein', lfixed to the piston 1s avrod'3 having a' handle 4 at its Vupper knd.- An annular 'collarl5, having a reduced and threaded end portion, is se- 7y is threadet the lower end of.. the collar 5 the upper and lower faces of the valve seat, the ring 9 being arranged between the ends of the cylinder andthe end vof the'reduced portion of the collar 6 and on the upper face Aof the valve-seat 8 and the rin '1Q being 6 and engaging tlie lower face of the valve seat 8.

'A vacuumtipped base section 11 is detachablyi secured to t-he reducer .6.,b`y means of a clamp 12. (lo-actingwiththeA valve seat 8 isa valve 13, spring actuated in one direction. l f

An elbow 14 havinga reduced and exteriorally threaded upper endv portion 15, is

Referring by numerals accompanycured to the lower end of the cylindergl. A` reducer 6, having an* inner annular shouldery Packing rings 9 and V'are' arranged on y arranged over the shoulder 7 of t e reducerl i u .valves arranged to-.ifrom discharge" kit through formed integral with the collar 5,- and a reducer 16having an( inner annular shoulder 17 is threadedto the elbow 14. y c

A valve seat 18, a valve 19 and packing rings 20, identical inoonstructionl and position 1n the same manner aslthe valve seat 8,

by the u per end of the elbow 14 and shoulder 17 o the reducer 16. A flexible tube 21 connection 22.

tical with the structure shown in Figs. 1 and 2, with the exception of the base sec- This construction is designed for use in places where it is impractical. to placel a.

structure as shown in-Figs. 1f and 2, and in is connected with the reducer 16 byl a swivel rings 9 and'l() and valve 13, are embraced ,The construction shown in Fig. 4 is idention. 'In this instance, a metallic, non-iiexiplied from the base section 23 to be forced" outwardly through the fleXlble tube 21.

places where no fixed body of water is accessible. Inthis instance, a` bucketlor suit-A able container is filled with water and the pump introduced therein with its base section resting on, the bottomeof the bucket. The iiexible tube is then inserted into. the pipe to be operated on, or the vacuum tip may be connected thereon and placed over the end of the pipe to be operated on.

In the? practical operation of the structure shown in Figs. 1 and 2, the pump provided with a vacuum tip atits lower end is placed over a drain pipe to be operated on. The drawing` shows a stationary basin, but it is understood that the device may be employed on drain pipes generally in plumbmg.' The tube 21 is then placed in a body of water (the basin itself in this instance) and the piston moved upwardly through the cylinder, drawing water through the tubing Q1, valve 19 and elbow 14 into the cylinder 1. A- downward moving of' the piston forces the water to close the valve 19 and through the valve 13 into the pipe to be cleaned.

A pump of my improved construction can be very cheaply manufactured, is very light, strong and dura-ble, and provides a neat and eiicient means whereby drain and WasteA space in its reduced-portion for receiving the valve when same isreversed; the detachable valve-seat 8; the s rm -actuated valve 13 carried by said detac ab e valve-seat and adapted to be reversed by reversing said valve-seat, so that the spring-portlon of said valve will be located 1n the said space within said reduced portion of said reducer; packing-rings 9 and 10 arranged on the upper and lower faces of said valve-seat, said ring 9 beingl in Contact with the lower end of said cylinder and the upper face of said valve-seat, and1 said ring 10 being arranged between the ower face of said valveseat and the said shoulder 7 of saidreducer a suitablebase securedto the reduced-portion of said reducer; an elbow 14 formed integral with said colla-r 5, projecting' at one side thereof and having its outer end reduced andthreaded; the reducer lthreaded upon said threaded-end of said elbow, said elbow and said reducer 16 forming chambers for receiving theportionsf a rever sible spring check-valve; the valve-seat 19 and packing-rings 20 clampedbetween said threaded-end of said elbow and the body of said reducer 16; and the valve 19 carried by said valve-seat and adapted to be reversed by disconnecting said reducer from said elbow and reversing said--valveseat 18; all in combination with a suitable flexible-hose, as 21, applied to the reduced-end of said reducer 16.

In testimony whereof, I have signed .1

name' to this specification, in presence of two subscribing witnesses. l

JOHN F. CUNNINGHAM.-v

Witnesses:

Bassin A. KNOX, h GEO. A. MGCALLUM. 

